I gave you the author and the book.
The picture and its caption tell enough of the story that any reasonably intelligent person would be able to figure out that,
A. It was warmer and wetter in that location 5000 years ago than it is today.
2) This fact may be contrary to what some in the political climate science community would have us believe.
Either you're an asshole, an idiot, or some combination of the two.
...and you found this picture while taking a crap, right?